Topology optimization of on-chip integrated laser-driven particle accelerator

作     者：Yang-Fan He Bin Sun Ming-Jiang Ma Wei Li Qiang-You He Zhi-Hao Cui Shao-Yi Wang Zong-Qing Zhao Yang-Fan He;Bin Sun;Ming-Jiang Ma;Wei Li;Qiang-You He;Zhi-Hao Cui;Shao-Yi Wang;Zong-Qing Zhao

作者机构：Laser Fusion Research CenterCAEPP.O.Box 919986Mianyang 621900China The Sciences and Technology on Plasma Physics LaboratoryCAEPMianyang 621900China Department of Plasma Physics and Fusion EngineeringCAS Key Laboratory of Geospace EnvironmentUniversity of Science and Technology of ChinaHefei 230026China The Institute of OpticsUniversity of RochesterRochesterNY 14627USA 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2022年第33卷第9期

页      面：126-136页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：the National Natural Science Foundation of China(Nos.12004353,11975214,11991071,11905202,12174350) Key Laboratory Foundation of The Sciences and Technology on Plasma Physics Laboratory(No.6142A04200103) Independent scientific research(No.JCKYS2021212011) 

主　　题：Laser-driven particle acceleration Dielectric grating accelerator Inverse Smith-Purcell effect Topology optimization 

摘      要：Particle accelerators are indispensable tools in both science and ***,the size and cost of conventional RF accelerators limits the utility and scope of this *** research has shown that a dielectric laser accelerator(DLA)made of dielectric structures and driven at optical frequencies can generate particle beams with energies ranging from MeV to GeV at the tabletop *** design DLA structures with a high acceleration gradient,we demonstrate topology optimization,which is a method used to optimize the material distribution in a specific area based on given load conditions,constraints,and performance *** demonstrate the effectiveness of this approach,we propose two schemes and design several acceleration structures based on *** optimization results demonstrate that the proposed method can be applied to structure optimization for on-chip integrated laser accelerators,producing manufacturable structures with significantly improved performance compared with previous size or shape optimization *** results provide new physical approaches to explore ultrafast dynamics in matter,with important implications for future laser particle accelerators based on photonic chips.